Short-Term Treasury Yields
Touch 50-Year Lows

In developments reminiscent of last summer's liquidity crisis, money markets saw renewed strains Thursday that sent investors and dealers scrambling for cash.

Investors poured into the safest corners of the government-bond markets, fearing that more bad news from the financial sector would upset markets shuttered for the long Easter holiday weekend. They sought shelter also from tumbling commodity prices and sharp fluctuations in currencies.